Chin. J. Org. Chem. ›› 2012, Vol. 32 ›› Issue (11): 2193-2197.DOI: 10.6023/cjoc201204020 Previous Articles     Next Articles



李大庆, 臧洪俊, 吴长春, 卢波, 程博闻   

  1. 天津工业大学环境与化学工程学院 天津改性与功能纤维重点实验室 天津 300387
  • 收稿日期:2012-04-18 修回日期:2012-06-19 发布日期:2012-07-02
  • 通讯作者: 臧洪俊
  • 基金资助:

    天津市自然科学基金(No. 11JCZDJC21300)资助项目.

Synthesis of 4-Hydroxy-6-methyl-[(1-phenylimino)ethyl]-2H-pyran-2- one Derivatives Catalyzed by Ionic Liquid [BMIM-HSO3]HSO4 under Ultrasound

Li Daqing, Zang Hongjun, Wu Changchun, Lu Bo, Cheng Bowen   

  1. State Key Laboratory of Hollow Fiber Membrane Material and Processes, Department of Environmental and Chemistry Engineering, Tianjin Polytechnic University, Tianjin 300387
  • Received:2012-04-18 Revised:2012-06-19 Published:2012-07-02
  • Supported by:

    Project supported by the Natural Science Foundation of Tianjin City (No. 11JCZDJC21300).

4-Hydroxy-6-methyl-[(1-phenylimino)ethyl)]-2H-pyran-2-one derivatives have been synthesized via the reaction of dehydroacetic acid and amine in the presence of the ionic liquid [BMIM-HSO3]HSO4 under ultrasonic irradiation. The effect of catalyst, catalyst amount, reaction temperature and solvent on the yield was investigated. The optimum reaction condition was determined and the possible mechanism was proposed. This method has some distinct advantages such as short reaction time, high yields, environmental friendliness and mild reaction conditions. Moreover, the ionic liquid could be recovered conveniently and reused.

Key words: ionic liquid, ultrasound, dehydroacetic acid, amine